Add the bay leaf, lentils, thyme (if using), wine, and 3 1/2 cups broth. Bring the mixture to a boil, then reduce the heat to a simmer. Simmer, uncovered, for about 30 minutes or until the lentils are tender, stirring occasionally and adding the last 1/2 cup broth if the lentils get at all dry. The finished lentils should have a little soupiness and extra broth at the bottom of the pot. When the lentils are finished, remove the bay leaf, taste them, and adjust salt and pepper as needed. You can add an extra drizzle of olive oil, if you like.